CN201499010U - DC power supply for wind turbine generator system - Google Patents
DC power supply for wind turbine generator system Download PDFInfo
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- CN201499010U CN201499010U CN2009203068250U CN200920306825U CN201499010U CN 201499010 U CN201499010 U CN 201499010U CN 2009203068250 U CN2009203068250 U CN 2009203068250U CN 200920306825 U CN200920306825 U CN 200920306825U CN 201499010 U CN201499010 U CN 201499010U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
A DC power supply for wind turbine generator systems belongs to the technical field of wind power generation and comprises a power converter, a power controller and a control circuit, wherein input terminals of the power converter and the power controller are both connected with a three-phase output terminal of a wind turbine generator system, an output terminal of the power converter is connected with a storage battery and electric appliance, an input terminal of the control circuit is connected with a signal terminal of the power converter, and an output terminal of the control circuit is connected with control terminals of the power converter and the power controller. By adjusting the output power of the wind turbine generator system, the DC power supply can actively control the rotating speed thereof for the maximum power track; and the overall storage battery management can also be realized.
Description
Technical field
The utility model relates to a kind of device of technical field of wind power generation, specifically is a kind of DC power supply that is used for wind turbine generator.
Background technology
At present, it is more prevalent that the small-sized wind power generator group is applied to the low-voltage DC power-supply system.This class electric power system often adopts following three kinds of modes when introducing wind power generation: 1) the wind turbine generator output voltage is consistent with the power consumption equipment rated voltage, and its output electric energy is directly powered to charge in batteries and power consumption equipment behind over commutation; 2) the wind turbine generator output voltage is higher than the power consumption equipment rated voltage, and the output electric energy is directly powered to charge in batteries and power consumption equipment by rectification after the transformer step-down; 3) the wind turbine generator output voltage is higher than the power consumption equipment rated voltage, the output electric energy is directly to the battery charging consistent with the wind turbine generator output voltage, and by miscellaneous equipment (generally comprising inverter and Switching Power Supply) the high-voltage direct-current electric energy being converted to low voltage and direct current then can power to power consumption equipment.
Have the maximum power notion in the wind generating technology, promptly under certain wind speed, wind turbine generator is exportable maximum power under specific rotation speeds.Realize that maximal power tracing just must control wind turbine generator rotating speed.From the control angle, more than three kinds of modes do not have the ACTIVE CONTROL link, belong to Passive Control; After the rectification of wind turbine generator output electric energy (or with fixed proportion step-down) directly to charge in batteries, battery tension has directly determined wind-force unit power output, and this moment, the wind turbine generator power output often was not a maximum, and adopted the maximal power tracing technology can increase substantially the energy output of wind turbine generator.Simultaneously, the direct charging modes of rectification lacks necessary management to charge in batteries, influences storage battery useful life.
Find through retrieval prior art, Chinese patent application number: 200710147359.1, patent name is: charge controller of wind turbine generator and charge control method, a kind of charge controller of wind turbine generator and charge control method are disclosed, the frequency conversion that wind-driven generator is sent, the alternating current of transformation are rectified into direct current by rectification circuit, behind rectification circuit, increase the charge controller that includes buck circuit, by the chopping voltage value is set, with the direct current after the copped wave to charge in batteries.Use for reference this technology, can improve the available wind speed range of wind-driven generator.But this technology is only controlled the storage battery constant voltage charge by the mode that the chopping voltage value is set, and lacks perfect accumulator cell charging and discharging management.On the other hand, though this technology has been widened the available wind speed range of wind turbine generator, do not take necessary method to realize the maximal power tracing of wind turbine generator.
The utility model content
The utility model is at the prior art above shortcomings, a kind of DC power supply that is used for wind turbine generator is provided, by adjusting wind turbine generator power output ACTIVE CONTROL wind turbine generator rotating speed, realize maximal power tracing, realize the storage battery comprehensive management simultaneously.
The utility model is achieved through the following technical solutions, the utility model comprises: power inverter, power controller and control circuit, wherein: the input of power inverter is connected with the three-phase output end of wind turbine generator respectively with the input of power controller, the output of power inverter connects storage battery and power consumption equipment, the input of control circuit is connected with the signal end of power inverter, and the output of control circuit is connected with the control end of power inverter and power controller respectively.
Described power inverter comprises: first rectifier bridge, input filter capacitor, full-bridge converter, high frequency transformer, full-bridge rectification bridge and output filter capacitor, wherein: the input of first rectifier bridge is connected with the three-phase output end of wind turbine generator, the output of first rectifier bridge also is connected to input filter capacitor, the full-bridge converter electrode input end connects the input filter capacitor positive pole, the full-bridge converter negative input connects the input filter capacitor negative pole, the former limit of full-bridge converter output termination high frequency transformer, the high frequency transformer secondary connects full-bridge rectification bridge input, and full-bridge rectification bridge output also is connected to output filter capacitor.
Described power inverter is converted into the high-voltage direct-current electric energy with the three-phase alternating current electric energy that wind turbine generator produces earlier, move by control circuit power controlling converter, the high-voltage direct-current electric energy is converted into the low voltage and direct current energy that meets battery characteristics, adjust wind turbine generator power output and then ACTIVE CONTROL wind turbine generator rotating speed by the pulse duration that changes full-bridge converter, realize maximal power tracing, realize the storage battery comprehensive management simultaneously.The setting power curve can online within the specific limits adjustment, makes power curve meet field requirement.
Described rectifier bridge is the three-phase diode rectifier bridge.
Described full-bridge converter is the full-bridge circuit that field-effect transistor constitutes.
Described full-bridge converter is the full-bridge circuit that fast recovery diode constitutes.
Described power controller comprises: second rectifier bridge, power tube and power resistor, wherein: the input of second rectifier bridge is connected with the three-phase output end of wind turbine generator, the cathode output end of second rectifier bridge connects power resistor one end, the collector electrode of another termination power tube of power resistor, the emitter-base bandgap grading of power tube connect the negative pole output of second rectifier bridge.
Described power tube is an insulated gate bipolar transistor.
Described second rectifier bridge is the three-phase diode rectifier bridge, this rectifier bridge changes the three-phase alternating current that wind turbine generator produces into the high-voltage direct-current electric energy, comes power controlling resistance consumption power with the torque of control wind turbine generator by the break-make of control circuit power controlling pipe.When storage battery will be expired, realize wind turbine generator operation control by power controller.
Described control circuit comprises: microprocessor, sample circuit, power controlling output circuit, analog amplify circuit, LCDs, keyboard and telecommunication circuit, wherein: the input of the output termination analog amplify circuit of sample circuit, the input of the output termination microprocessor of analog amplify circuit, the output of the input termination microprocessor of power controlling output circuit, microprocessor connects LCDs, keyboard and communication module simultaneously.
Described control circuit is determined the pulse duration of power inverter and power controller by physical quantitys such as sampling wind turbine generator rotating speed, voltage, electric current, battery tension, temperature, by the normal operation and the maximal power tracing of power controlling converter and power controller control wind turbine generator.
The utility model adopts the wind turbine generator that is higher than power consumption equipment voltage, utilizes high voltage to reduce generator loss and loss; Adopt power inverter ACTIVE CONTROL wind turbine generator power output, realize the wind turbine generator maximal power tracing, realize the charge in batteries management simultaneously; Adopt the torque of power controller control wind turbine generator, realize the safe operation of wind turbine generator.The utility model has not only been widened the available wind speed range of wind turbine generator, and has improved the whole efficiency of electricity generation system greatly, has strengthened wind turbine generator fail safe and reliability greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below embodiment of the present utility model is elaborated: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 1, the utility model comprises: power inverter 1, power controller 2 and control circuit 3, wherein: the input of power inverter 1 is connected with the three-phase output end of wind turbine generator respectively with power controller 2 inputs, the output of power inverter 1 is connected to wind power generation storage battery or power consumption equipment respectively, the input of control circuit 3 is connected with the signal end of power inverter 1, and the output of control circuit 3 is connected with the control end of power controller 2.
Described power inverter 1 comprises: rectifier bridge 4, input filter capacitor 5, full-bridge converter 6, high frequency transformer 7, full-bridge rectification bridge 8 and output filter capacitor 9, wherein: the wind turbine generator three-phase output end connects the input of rectifier bridge 4, rectifier bridge 4 outputs also are connected to input filter capacitor 5, full-bridge converter 6 anodal termination input filter capacitor 5 positive poles, full-bridge converter 6 negative pole termination input filter capacitors 5 negative poles, full-bridge converter 6 output termination high frequency transformers 7 former limits, high frequency transformer 7 secondary connect full-bridge rectification bridge 8 inputs, and full-bridge rectification bridge 8 outputs also are connected to output filter capacitor 9.
Described rectifier bridge 4 is the three-phase diode rectifier bridge.
The full-bridge circuit that described full-bridge converter 6 constitutes for field-effect transistor.
The full-bridge circuit that described full-bridge rectification bridge 8 constitutes for fast recovery diode.
Described power controller 2 comprises: rectifier bridge 4, power resistor 10 and power tube 11, wherein: the output of wind turbine generator three-phase connects the input of rectifier bridge 4, the positive pole output of rectifier bridge 4 connects power resistor 10 1 ends, the collector electrode of power resistor 10 another termination power tubes 11, the emitter-base bandgap grading of power tube 11 connect the negative pole output of rectifier bridge 4.
Described power tube 11 is an insulated gate bipolar transistor.
Described rectifier bridge 4 is the three-phase diode rectifier bridge, this rectifier bridge 4 changes the three-phase alternating current that wind turbine generator produces into the high-voltage direct-current electric energy, comes dynamic power controlling resistance 10 consumed powers with the torque of control wind turbine generator by the break-make of control circuit 3 power controlling pipes 11.When storage battery will be expired, realize wind turbine generator operation control by power controller 2.
Described control circuit 3 comprises: microprocessor 12, sample circuit 13, power controlling output circuit 14, analog amplify circuit 15, LCDs 16, keyboard 17 and telecommunication circuit 18, wherein: the input of the output termination analog amplify circuit 15 of sample circuit 13, the input of the output termination microprocessor 12 of analog amplify circuit 15, the output of the input termination microprocessor 12 of power controlling output circuit 14, microprocessor 12 connects LCDs 16, keyboard 17 and communication module 18 simultaneously.
Described microprocessor 11 is 8 single chip computer AT MEGA32 of atmel corp.
The isolation sample circuit of described sample circuit 13 for constituting by Hall element.
Described power controlling output circuit 14 is served as reasons and is isolated the drive circuit of optocoupler and chip for driving IXDP509 formation.
Described analog amplify circuit 15 is an operation amplifier circuit, the signal of sample circuit 13 acquisitions is sent into the analog quantity input terminal of microprocessor through proper transformation.
Described telecommunication circuit 18 is 485 modes, can communicate by 485 buses and host computer, satisfies the remote monitoring requirement.
The three-phase alternating current electric energy that wind turbine generator produces is transformed into the less dc high voltage of ripple behind three-phase commutation bridge rectification and input filter capacitor smothing filtering.Input filter capacitor, full-bridge converter, high frequency transformer, full-bridge rectifier, output filter capacitor constitute a complete full-bridge circuit, by the pulse duration of control circuit control full-bridge converter the low voltage and direct current that the high-voltage direct-current electric energy changes low ripple into can be powered to charge in batteries and power consumption equipment.Power inverter is adjusted power output according to the setting power curve, control the wind turbine generator rotating speed with this and realize maximal power tracing, and the setting power curve can online within the specific limits adjustment, makes power curve meet field requirement.Simultaneously, the characteristics according to charge in batteries realize that storage battery all fills and float management.Power inverter has made up an intermediate link between wind turbine generator and storage battery and the power consumption equipment, this link has not only realized the coupling of wind turbine generator output voltage and battery tension, and realizes wind turbine generator maximal power tracing and battery management by ACTIVE CONTROL wind turbine generator rotating speed.This mode has reduced power transmission loss, has widened the available wind speed range of wind turbine generator simultaneously, has realized the best capture of wind energy, has improved the whole efficiency of electricity generation system greatly.
Claims (9)
1. DC power supply that is used for wind turbine generator, it is characterized in that, comprise: power inverter, power controller and control circuit, wherein: the input of power inverter is connected with the three-phase output end of wind turbine generator respectively with the input of power controller, the output of power inverter connects storage battery and power consumption equipment, the input of control circuit is connected with the signal end of power inverter, and the output of control circuit is connected with the control end of power inverter and power controller respectively.
2. the DC power supply that is used for wind turbine generator according to claim 1, it is characterized in that, described power inverter comprises: first rectifier bridge, input filter capacitor, full-bridge converter, high frequency transformer, full-bridge rectification bridge and output filter capacitor, wherein: the input of first rectifier bridge is connected with the three-phase output end of wind turbine generator, the output of first rectifier bridge also is connected to input filter capacitor, the full-bridge converter electrode input end connects the input filter capacitor positive pole, the full-bridge converter negative input connects the input filter capacitor negative pole, the former limit of full-bridge converter output termination high frequency transformer, the high frequency transformer secondary connects full-bridge rectification bridge input, and full-bridge rectification bridge output also is connected to output filter capacitor.
3. the DC power supply that is used for wind turbine generator according to claim 2 is characterized in that, described first rectifier bridge is the three-phase diode rectifier bridge.
4. the DC power supply that is used for wind turbine generator according to claim 2 is characterized in that, described full-bridge converter is the full-bridge circuit that field-effect transistor constitutes.
5. the DC power supply that is used for wind turbine generator according to claim 2 is characterized in that, described full-bridge converter is the full-bridge circuit that fast recovery diode constitutes.
6. the DC power supply that is used for wind turbine generator according to claim 1, it is characterized in that, described power controller comprises: second rectifier bridge, power tube and power resistor, wherein: the input of second rectifier bridge is connected with the three-phase output end of wind turbine generator, the cathode output end of second rectifier bridge connects power resistor one end, the collector electrode of another termination power tube of power resistor, the emitter-base bandgap grading of power tube connect the negative pole output of second rectifier bridge.
7. the DC power supply that is used for wind turbine generator according to claim 6 is characterized in that, described power tube is an insulated gate bipolar transistor.
8. the DC power supply that is used for wind turbine generator according to claim 6 is characterized in that, described second rectifier bridge is the three-phase diode rectifier bridge.
9. the DC power supply that is used for wind turbine generator according to claim 1, it is characterized in that, described control circuit comprises: microprocessor, sample circuit, power controlling output circuit, analog amplify circuit, LCDs, keyboard and telecommunication circuit, wherein: the input of the output termination analog amplify circuit of sample circuit, the input of the output termination microprocessor of analog amplify circuit, the output of the input termination microprocessor of power controlling output circuit, microprocessor connects LCDs, keyboard and communication module simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203068250U CN201499010U (en) | 2009-07-24 | 2009-07-24 | DC power supply for wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203068250U CN201499010U (en) | 2009-07-24 | 2009-07-24 | DC power supply for wind turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201499010U true CN201499010U (en) | 2010-06-02 |
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ID=42442206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203068250U Expired - Fee Related CN201499010U (en) | 2009-07-24 | 2009-07-24 | DC power supply for wind turbine generator system |
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| Country | Link |
|---|---|
| CN (1) | CN201499010U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320029B (en) * | 2014-11-05 | 2017-02-22 | 无锡曼克斯电子科技有限公司 | Control device of limitation protection component of wind driven generator |
| CN108134440A (en) * | 2017-12-28 | 2018-06-08 | 广州市风力新能源科技有限公司 | A kind of high power wind-mill generating equipment |
| CN113904431A (en) * | 2021-09-23 | 2022-01-07 | 中国华能集团清洁能源技术研究院有限公司 | Variable-pitch standby power supply system for wind power generation and control method thereof |
| WO2024110804A1 (en) * | 2022-11-24 | 2024-05-30 | Ricoh Company, Ltd. | Power storage system, system, and power storage device |
-
2009
- 2009-07-24 CN CN2009203068250U patent/CN201499010U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320029B (en) * | 2014-11-05 | 2017-02-22 | 无锡曼克斯电子科技有限公司 | Control device of limitation protection component of wind driven generator |
| CN108134440A (en) * | 2017-12-28 | 2018-06-08 | 广州市风力新能源科技有限公司 | A kind of high power wind-mill generating equipment |
| CN113904431A (en) * | 2021-09-23 | 2022-01-07 | 中国华能集团清洁能源技术研究院有限公司 | Variable-pitch standby power supply system for wind power generation and control method thereof |
| WO2024110804A1 (en) * | 2022-11-24 | 2024-05-30 | Ricoh Company, Ltd. | Power storage system, system, and power storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20110724 |